ULN2004AN Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
ULN2004AN is a 7-channel high-voltage, high-current Darlington transistor array from Texas Instruments, featuring 500mA output current per channel, 50V output voltage, and integrated flyback diodes for inductive load protection. Ideal for driving relays, motors, and solenoids. From $0.21, in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- ULN2004AN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2077(MOQ 1)
- Temp Range
- -20.0°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 7-Channel Darlington Array: Seven independent NPN Darlington pairs in a single DIP-16 package, simplifying multi-load drive designs
- High Voltage & Current Output: Supports up to 50V and 500mA per channel, suitable for driving relays, solenoids, and stepper motors
- Built-in Flyback Diodes: Integrated transient suppression diodes protect against inductive kickback without external components
- CMOS/PMOS/NMOS Compatible Inputs: Input resistors optimized for 5V CMOS and TTL logic levels for direct microcontroller interfacing
- Wide Temperature Range: Operates from -20°C to +85°C, suitable for industrial and commercial applications
Applications
The ULN2004AN is widely used in relay driver circuits, stepper motor control, and solenoid actuation where microcontrollers or logic ICs need to switch higher-power loads. It is commonly found in industrial automation, home appliance control, and printer carriage drive systems. Its 7-channel configuration makes it ideal for multi-output peripheral driver boards and PLC output modules.
Specifications
| Pbfree Code | Yes |
| Date Of Intro | 1991-01-01 |
| YTEOL | 15 |
| Built-in Protections | TRANSIENT |
| Driver Number of Bits | 7 |
| Interface IC Type | BUFFER OR INVERTER BASED PERIPHERAL DRIVER |
| JESD-30 Code | R-PDIP-T16 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Characteristics | OPEN-COLLECTOR |
| Output Current Flow Direction | SINK |
| Output Current-Max | 0.5A |
| Output Peak Current Limit-Nom | 0.5A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP16,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Surface Mount | NO |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Turn-off Time | 1 µs |
| Turn-on Time | 1 µs |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia, Mexico |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for ULN2004AN:
Frequently Asked Questions
What is the maximum output voltage and current of the ULN2004AN?
The ULN2004AN supports a maximum output voltage of 50V and a maximum continuous output current of 500mA per channel, making it suitable for driving relays, solenoids, and small DC motors directly from logic-level signals.
Is the ULN2004AN compatible with 3.3V or 5V microcontroller logic?
The ULN2004AN is optimized for 5V CMOS and TTL input levels. For 3.3V logic, it can still function but may exhibit reduced noise margin; using the ULN2003A (TTL/CMOS) or ensuring adequate input drive voltage is recommended for reliable switching.
Does the ULN2004AN require external flyback diodes when driving inductive loads?
No. The ULN2004AN integrates built-in suppression diodes (connected to a common COM pin) for transient protection when switching inductive loads such as relays and motors, eliminating the need for external flyback diodes in most applications.
What package does the ULN2004AN come in and what are its alternatives?
The ULN2004AN is available in a 16-pin DIP (PDIP) package, making it easy to use on breadboards and through-hole PCBs. Pin-compatible alternatives include the ULN2003AN (7 channels, TTL input) and ULN2004ADR (SOIC surface-mount package).
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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